申请人:Kirin Beer Kabushiki Kaisha
公开号:US05631238A1
公开(公告)日:1997-05-20
Disclosed is a novel spicamycin derivative represented by the formula (I) or a salt thereof: ##STR1## wherein R represents an alkenyl having a given number of carbon atoms, a haloalkyl having a given number of carbon atoms, CH.sub.3 (CH.sub.2).sub.n CH(OH)-- or CH.sub.3 (CH.sub.2).sub.n-1 CH(OH)--CH.sub.2 -- (wherein n denotes an integer of 9-13), an alkyl with a certain group and a given number of carbon atoms, ##STR2## (wherein a denotes 2, and b denotes an integer of 10-15), CH.sub.3 (CH.sub.2).sub.c SO.sub.2 O(CH.sub.2).sub.d --, ##STR3## (wherein c denotes an integer of 0-3 and d denotes an integer of 10-15), (CH.sub.3).sub.3 Si(CH.sub.2).sub.10 --, (CH.sub.3).sub.3 Si--C.tbd.C--(CH.sub.2).sub.8 --, ##STR4## (wherein X represents O or S), and R.sub.1 and R.sub.2 are different from each other and each represents H or OH, which exhibits an excellent antitumor effect and has a high therapeutic index. An antitumor agent containing at least one of the above-described compounds in an effective amount is also disclosed.
本发明公开了一种新的以式(I)表示的孢霉素衍生物或其盐:##STR1##
其中,R代表具有一定数量碳原子的烯基,具有一定数量碳原子的卤代烷基,CH.sub.3(CH.sub.2).sub.nCH(OH)--或CH.sub.3(CH.sub.2).sub.n-1CH(OH)--CH.sub.2--(其中n为9-13的整数),具有一定基团和一定数量碳原子的烷基,##STR2##(其中a为2,b为10-15的整数),CH.sub.3(CH.sub.2).sub.cSO.sub.2O(CH.sub.2).sub.d--,##STR3##(其中c为0-3的整数,d为10-15的整数),(CH.sub.3).sub.3Si(CH.sub.2).sub.10--,(CH.sub.3).sub.3Si--C.tbd.C--(CH.sub.2).sub.8--,##STR4##(其中X代表O或S),且R.sub.1和R.sub.2不同,且均代表H或OH,具有优异的抗肿瘤效果和高治疗指数。本发明还公开了一种包含上述至少一种化合物的抗肿瘤剂量。